Researchers at IMRA America have demonstrated a new THz source architecture that overcomes several long-standing limitations. By combining a resonant tunneling diode (RTD), a photomixed dual-wavelength Brillouin laser, and a Micro Harmonics low-loss waveguide circulator, the team achieved more than 40 dB of gain at 260 GHz. Read the full story from everythingRF to learn [...]
Orthomode Transducers: Part 4 – RF Testing with a Short Circuit Termination David W. Porterfield, PhD Founder, Micro Harmonics In previous blogs, we gave a brief introduction to orthomode transducers (OMTs) and their applications [1], showed some of the common OMT architectures [2], and described the important parameters of OMTs, including insertion loss, port reflections, [...]
Micro Harmonics' OMT proved essential to the success of a recent joint demonstration with VDI and Keysight to successfully transmit two independent wideband signals over a single 142 GHz link using orthogonal polarizations, effectively doubling data capacity. The breakthrough was enabled by Micro Harmonics’ high‑isolation, low‑loss OMT, which allowed 40 GHz of combined bandwidth to pass through [...]
Orthomode Transducers: Part 3 – Characterization David W. Porterfield, PhD Founder, Micro Harmonics In previous blogs, "Orthomode Transducers: Part 1 – Introduction and Applications" and "Orthomode Transducers: Part 2 – Architectures", we gave a brief description of orthomode transducers (OMTs), discussed some applications, and described some basic architectures. In this third post, we will examine [...]
A recent joint demonstration by VDI, Keysight, and Micro Harmonics successfully transmitted two independent wideband signals over a single 142 GHz link using orthogonal polarizations, effectively doubling data capacity. The breakthrough was enabled by Micro Harmonics’ high‑isolation, low‑loss OMT, which allowed 40 GHz of combined bandwidth to pass through one spatial path with exceptional signal integrity. This [...]
An article published in EE Design It discusses a growing reality in mmWave system design: traditional attenuation approaches stop scaling once you push into the D-band. The story features our new WR-8 voltage-variable attenuator as the solution. That is because we addressed the problem, not with a refinement of conventional techniques, but by switching to [...]
When MMW Challenges Push the Limits of Design, We Reengineer What’s Possible Micro Harmonics was founded on the clear belief that advancement at millimeter wave (MMW) and terahertz (THz) frequencies requires components designed to resolve industry challenges. We are committed to listening to our customers, learning about their needs, and designing innovative solutions. The pace [...]
We are excited to announce the release of our newest millimeter-wave voltage-variable attenuator (VVA) that harnesses Faraday rotation technology. The WR-8 VVA is optimized for systems operating in the 90-140 GHz frequency range, delivering full band performance. Read the full release in Microwave Journal:
Keysight Technologies published a white paper on: 6G - A New Approach to Increasing Data Throughput. The company, in collaboration with Virginia Diodes, utilized our Orthomode Transducers (OMTs) in a new approach to combine the vertical and horizontal polarized signals into one dual-polarized signal to double the data throughput relative to a single-polarized transmission. This [...]
An article in Microwave Product Digest discusses one of the central engineering challenges in sub-THz communication is the limited availability of hardware and the underlying components required for it to operate reliably at these frequencies. The story is about a recent effort led by Virginia Diodes, Inc. (VDI) and Keysight Technologies, using the Micro Harmonics [...]
